Answer:
Love.
Step-by-step explanation:
During the Old Testament, the people constantly want to see or feel the physical presence of God. And more often than not, they deviate from the ways of the Lord and commit sin. In Deuteronomy, Moses had to keep on warning, advising the Israelites to keep the commandments of the Lord. He needs to remind them of their obligation in order for their own safety. And they should keep all these commands out of their love for God. They must 'hear, do, keep, observe' God's commands so that they will be safe from His wrath.